Home Menu

Menu


          
PY Online Forums - Bringing the Pontiac Hobby Together > Search Forums > Search Results
Page 1 of 14 1 2311 Last »
Showing results 1 to 25 of 327
Search took 0.02 seconds. Search: Posts Made By: paul s.
Forum: Pontiac - Street 12-17-2014, 06:25 PM
Replies: 42
Views: 3,183
Posted By paul s.
Edelbrock D-ports can easily be ported to 2.4"...

Edelbrock D-ports can easily be ported to 2.4" height. That is our Stage 2 port, then a comparison of various gaskets, a 2.4", 2.32", and stock. The dyno sheet is of a 488 with a Ported RPM, a Sean...
Forum: Pontiac - Street 11-29-2014, 11:45 AM
Replies: 16
Views: 639
Posted By paul s.
good responses. Another factor which I don't...

good responses. Another factor which I don't believe has been mentioned is deck height. We have a very tall deck compared to other makes and it will effect the "line of sight" from the carburetor...
Forum: Pontiac - Street 11-26-2014, 12:45 AM
Replies: 72
Views: 4,121
Posted By paul s.
Torque is a byproduct of displacement, cylinder...

Torque is a byproduct of displacement, cylinder pressure, and volumetric efficiency. Peak torque rpm correlates to airspeed in the port and that speed is in the range of 250fps.
Forum: Pontiac - Street 10-30-2014, 12:50 AM
Replies: 52
Views: 2,371
Posted By paul s.
Low ratios work well when you are able to take...

Low ratios work well when you are able to take advantage of higher rpm capability. With the moderate compression, cam timing, and rpm limit... I too agree the gear is a definite mismatch... In...
Forum: Pontiac - Street 10-19-2014, 04:58 PM
Replies: 34
Views: 1,574
Posted By paul s.
Everything is a compromise; one cannot just say...

Everything is a compromise; one cannot just say that a wide lobe separation angle will give you low end or A tight lobe separation angle will narrow your Power curve too much. It all depends on the...
Forum: Pontiac - Street 10-19-2014, 11:50 AM
Replies: 34
Views: 1,574
Posted By paul s.
The same thing would happen with a hydraulic...

The same thing would happen with a hydraulic roller lifter as well, only now, as rpm increase and the valve spring can no longer maintain control of the valvetrain, instead of the entire lifter body...
Forum: Pontiac - Street 10-19-2014, 01:00 AM
Replies: 34
Views: 1,574
Posted By paul s.
Seat pressures are absolutely important, but...

Seat pressures are absolutely important, but something a lot of people don't talk about are open pressures (over the nose) and spring rate to control loft, a major player in lifter pump up. Gaining...
Forum: Pontiac - Street 10-18-2014, 08:39 PM
Replies: 34
Views: 1,574
Posted By paul s.
I've seen brand new 995's set to spec, cause an...

I've seen brand new 995's set to spec, cause an engine to lay over at 5,000. They just aren't strong enough for some grinds. Shimming the springs can help.

A compression test can give you an idea...
Forum: Pontiac - Street 10-18-2014, 03:32 PM
Replies: 34
Views: 1,574
Posted By paul s.
Steve C. nailed it. I use 3 different lobes...

Steve C. nailed it.

I use 3 different lobes from Comp. Extreme, Magnum, and another I won't mention for my series of cams. Take a look at my cam page, I guarantee these are the closest to custom...
Forum: Pontiac - Street 10-18-2014, 09:04 AM
Replies: 12
Views: 838
Posted By paul s.
[QUOTE=INFILTRATOR;5289276]Nice!! I want!! ...

[QUOTE=INFILTRATOR;5289276]Nice!! I want!!

Thanks. Nice looking project you've got going. Considering the direction you're taking, you may like our Pro-Touring engines as well!
Forum: Pontiac - Street 10-18-2014, 08:46 AM
Replies: 12
Views: 838
Posted By paul s.
.600".

.600".
Forum: Pontiac - Street 10-17-2014, 05:34 PM
Replies: 12
Views: 838
Posted By paul s.
[QUOTE=69FIREBIRD76MM;5289106]Very nice, how much...

[QUOTE=69FIREBIRD76MM;5289106]Very nice, how much is that going cost, 310cfm. Can we ship bare heads to you and you perform majic on them and whats most cfm this heads can flow?

Yes, we can...
Forum: Pontiac - Street 10-17-2014, 09:08 AM
Replies: 12
Views: 838
Posted By paul s.
The guides are pushed back for machining...

The guides are pushed back for machining purposes. That pic was taken as the head was taken off the machining center. If you look at pic #1, the intake port shot, they are full length and in...
Forum: Pontiac - Street 10-17-2014, 12:28 AM
Replies: 12
Views: 838
Posted By paul s.
CNC EDELBROCK D-PORTS!!!

Take a look at our CNC D-ports! We are proud to offer another product for the Pontiac enthusiasts to choose from.




Here is a quick video showing the idle with a set of stage 1's on a...
Forum: Pontiac - Street 07-11-2014, 08:09 PM
Replies: 30
Views: 1,226
Posted By paul s.
If you can get rid of the dip in the power curve,...

If you can get rid of the dip in the power curve, that would probably go a LONG way to picking up some of the lost hp in your combo.

EDIT: I believe your driveshaft issue is the definition of...
Forum: Pontiac - Street 07-11-2014, 05:17 PM
Replies: 24
Views: 1,269
Posted By paul s.
I agree with most on here, more compression if...

I agree with most on here, more compression if you want to keep it N/A. 72cc heads are a bolt on deal.

Port sizing largely determines rpm range but cam timing also plays a large role so if you...
Forum: Pontiac - Street 06-24-2014, 09:32 PM
Replies: 42
Views: 3,183
Posted By paul s.
Yes. I like to run at least 10.5:1 compression...

Yes. I like to run at least 10.5:1 compression with the old style chamber.

Like was mentioned before, it needs to work with the rest of the build. Could 10.5:1 be too much? If a guy is going...
Forum: Pontiac - Street 06-20-2014, 11:30 PM
Replies: 98
Views: 4,387
Posted By paul s.
Very good post, Bart. I will differ somewhat...

Very good post, Bart. I will differ somewhat about cam selection though. Since it is cylinder pressure that makes the crank turn, the cam should be aggressive. In a low rpm engine, it won't hurt a...
Forum: Pontiac - Street 06-16-2014, 03:41 PM
Replies: 7
Views: 1,026
Posted By paul s.
The use of the Rhoads lifters will REDUCE the...

The use of the Rhoads lifters will REDUCE the amount of time (in degrees) that the camshaft is off the seat... building cylinder pressure. The problem arises where that will/can create cylinder...
Forum: Pontiac - Race 06-09-2014, 04:02 PM
Replies: 16
Views: 712
Posted By paul s.
On stock deck height or SLIGHTLY decked blocks,...

On stock deck height or SLIGHTLY decked blocks, the only problem I have seen is the valley cover/port interference as there is a lot of material there. A few minutes with a die grinder usually takes...
Forum: Pontiac - Street 06-02-2014, 09:46 PM
Replies: 27
Views: 1,054
Posted By paul s.
X2... when you assemble the pickup and the body,...

X2... when you assemble the pickup and the body, the notch in the body pretty much indicates the location of the pickup. I wouldn't deviate much from that. Now, aftermarket pan... use the correct...
Forum: Pontiac - Street 06-02-2014, 09:40 PM
Replies: 12
Views: 1,228
Posted By paul s.
I consider the cam break-in procedure a two step...

I consider the cam break-in procedure a two step process and ALWAYS run it with the outers only, and then the inners included. I have NEVER had a customer call back with a problem. I suspect some...
Forum: Pontiac - Street 06-02-2014, 09:26 PM
Replies: 13
Views: 897
Posted By paul s.
If you want to build a sleeper and you may pay...

If you want to build a sleeper and you may pay for a forged crank anyway, why not go REAL BIG? Like a 488. With dished pistons you can still use the 670's like I did for Craig. Talk about looking...
Forum: Pontiac - Street 05-22-2014, 09:20 PM
Replies: 5
Views: 284
Posted By paul s.
Zeebo, what that is telling you is you need more...

Zeebo, what that is telling you is you need more initial timing. It should run smoothly without the vacuum advance. Yes, adding manifold vacuum advance at idle will pick up the rpm even more, and...
Forum: Pontiac - Street 05-21-2014, 08:56 PM
Replies: 27
Views: 1,063
Posted By paul s.
BOP makes good stuff.

BOP makes good stuff.
Showing results 1 to 25 of 327
Page 1 of 14 1 2311 Last »

 
Forum Jump

All times are GMT -4. The time now is 01:18 AM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Contact Us Home
Copyright © 2017